Atlas of North European Plants North of the Tropic of Cancer

In 1950 Eric Hulten published Atlas oever vaexternas utbredning i Norden (Atlas of the Distribution of Vascular Plants in NW. Europe) . A revised edition was issued in 1971, comprising in all 1930 distribution maps. This atlas was followed by a wide-ranging project aiming at a presentation of the total distribution of the North European vascular plants. According to this plan Hulten began with The Amphi-Atlantic Plants, published in 1958 (reprinted in 1973) in Kungl. Svenska Vetenskapsakademiens handlingar, 4th ser., vol. 7, no. 1. This work contains 278 distribution maps. The next issue in this project was The Circumpolar Plants, part I in 1962 (reprinted in 1964) and part II in 1971. They contain together 529 maps. However, the extensive project mentioned above was further developed. A considerable amount of distributional data were compiled and recorded on maps, in all 1936 in number. In these the above-mentioned amphi-atlantic and circumpolar plant maps were included. They have later been revised and completed by the editor. The selection of the mapped taxa was made by Hulten. Many of the 1936 maps presented in this work show the distribution of one or more taxa besides the taxon for which the map is elaborated. Altogether about 4475 plant taxa are treated, either on the maps or in the text of the present work. All maps are elaborated in the traditional manner with exact indication of the occurrences when possible (by dots or equal signs) . Limiting lines and hatching have been used in cases where only general information has been obtained or considered to be sufficient. Thus the mapping is not adapted to a grid system with squares, often used in modern works, especially in fairly in fairly well explored areas... (www.koeltz.com/product.aspx?pid=122774)